Optically pumped (GaIn)As/Ga(PAs) vertical-cavity surface-emitting lasers with optimized dynamics
Optically pumped (GaIn)As/Ga(PAs) vertical-cavity surface-emitting lasers with optimized dynamics
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具有优化动力学的光泵浦 (GaIn)As/Ga(PAs) 垂直腔表面发射激光器
DOI：
10.1063/1.123552
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发表时间：
1999
影响因子：
4
通讯作者：
M. Hilpert
中科院分区：
文献类型：
--
作者：
C. Ellmers;M. Hofmann;D. Karaiskaj;S. Leu;W. Stolz;W. Rühle;M. Hilpert
采用应变补偿（GaIn）As/Ga（PAs）材料体系和2λ sin型腔体，提出了一种针对快速本禀发射动力学进行优化的垂直腔面发射激光器结构。在反射率测量中发现了10.5 meV的大正模分裂，揭示了外延生长的高质量。我们的结构在30 K的飞秒光激发后的快速动态响应产生3.2 ps的脉冲宽度和仅4.8 ps的峰值延迟。设计用于高温激光发射的结构在室温下具有皮秒动力学。
We present a vertical-cavity surface-emitting laser structure optimized for fast intrinsic emission dynamics, using the strain-compensated (GaIn)As/Ga(PAs) material system with a 2λ sin-type cavity. The high quality of the epitaxial growth is revealed by the large normal mode splitting of 10.5 meV found in reflectivity measurements. The fast dynamical response of our structure after femtosecond optical excitation at 30 K yields a pulse width of 3.2 ps and a peak delay of only 4.8 ps. A structure designed for laser emission at higher temperatures exhibits picosecond dynamics at room temperature.